MODEL SOLVED PAPER RBI GRADE ‘B’ OFFICER’S EXAM Held on : 2008 (Part-III)

Total Questions: 50

31. These questions are based on the following arrangement:

D 5 4 I H * $ K E 3 L B @ A

R M 1 6 F % J & 2 7 C G 9

If all the digits are dropped from the above arrangement, which of the following will be fourth to the left of seventh from the right end?

Correct Answer: (1) B
Solution:New sequence

32. These questions are based on the following arrangement:

D 5 4 I H * $ K E 3 L B @ A

R M 1 6 F % J & 2 7 C G 9

How many such symbols are there in the above arrangement each of which is either immediately followed or immediately preceded by a consonant but not both?

Correct Answer: (5) More than three
Solution:and

Such combinations are :

33. These questions are based on the following arrangement:

D 5 4 I H * $ K E 3 L B @ A

R M 1 6 F % J & 2 7 C G 9

If the position of ten elements from the right end is reversed which of the following will be fifth to the right of thirteenth from the right ?

Correct Answer: (1) %
Solution:Fifth to the right of 13th from the right means 8th from the right.

8th from right %

34. These questions are based on the following arrangement:

D 5 4 I H * $ K E 3 L B @ A

R M 1 6 F % J & 2 7 C G 9

How many such consonants are there in the above arrangement each of which is immediately preceded by a vowel and also immediately followed by another consonant ?

Correct Answer: (2) One
Solution:

Such combination is :

35. These questions are based on the following arrangement:

D 5 4 I H * $ K E 3 L B @ A

R M 1 6 F % J & 2 7 C G 9

Four of the following five are alike in a certain way on the basis of their positions in the above arrangement and so form a group. Which is the one that does not belong to the group ?

Correct Answer: (5) @MA
Solution:

36. In each of the questions below are given three statements followed by four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements :

Some boxes are trees.

Some trees are horses.

All horses are fruits.

Conclusions :

I. Some fruits are boxes.

II. Some fruits are trees.

III. Some horses are boxes.

IV. No fruit box.

Correct Answer: (3) Only either I or IV and II follow
Solution:First and second Premises are Particular Affirmative (I- type).

Third Premise is Universal Affirmative (A-type).

Some trees are horses.

All horses are fruits.

We know that,

I + A I-type Conclusion Thus, our derived Conclusion would be :

"Some trees are fruits".

Conclusion II is the Converse of the derived Conclusion.

Conclusion I and IV form Complementary Pair.

Therefore, either Conclusion I or IV and II follow.

37. In each of the questions below are given three statements followed by four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements :

All flowers are buses. Some buses are cats.

All cats are tigers.

Conclusions :

I. Some tigers are buses.

II. Some tigers are flowers.

III. Some cats are flowers.

IV. Some buses are tigers.

Correct Answer: (4) Only I and IV follow
Solution:First and third Premises are Universal Affirmative (A- type).

Second Premise is Particu- lar Affirmative (I-type).

Some buses are cats.

All cats are tigers.

We know that,

I + A I-type Conclusion

Thus, our derived Conclusion would be :
Some buses are tigers'.
This is the Conclusion IV.
Conclusion I is the Converse of the derived Conclusion.
Thus, Conclusions I and IV follow.

38. In each of the questions below are given three statements followed by four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

 Statements :

All fans are rooms.

No room is green.

Some windows are green.

Conclusions :

I. Some windows are fans.

II. Some windows are rooms.

III. Some fans are green.

IV. No green is fan.

Correct Answer: (3) Only IV follows

39. In each of the questions below are given three statements followed by four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

 Statements :

Some tablets are rains.

All dogs are rains.

All rains are chairs.

Conclusions :

I. Some chairs are tablets.

II. All dogs are chairs.

III. Some tablets are dogs.

IV. Some tablets are chairs.

Correct Answer: (5) None of these
Solution:First Premise is Particular Affirmative (I-type).

Second and third Premises are Universal Affirmative (A- type).

Some tablets are rains.

All rains are chairs.

We know that,

I + A I - type Conclusion Thus, our derived Conclusion would be :

'Some tablets are chairs'.

This is the Conclusion IV.

Conclusion I is the Converse of this Conclusion.

All dogs are rains.

All rains are chairs.

We know that,

A + A A-type Conclusion Thus, our derived Conclusion would be :

'All dogs are chairs'.

Thus is the Conclusion II.

Some rains are dogs.(Converse of Second Premise)

All dogs are chairs.

We know that,

I + A I-type Conclusion Thus, our derived Conclusion would be :

"Some rains are chairs".

Thus, Conclusions I, II and IV follow.

40. In each of the questions below are given three statements followed by four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements :

No man is sky.

No sky is road. Some men are roads.

Conclusions :

I. No road is man.

II. No road is sky.

III. Some skies are men.

IV. All roads are men.

Correct Answer: (5) None of these
Solution:First and second Premises are Universal Negative
(E-type).
Third Premise is Particular
Affirmative (I-type).
Some roads are men.(Converse of Third Premise)

No men is sky.

We know that,

I + E O-type Conclusion Thus, our derived Conclusion would be :

'Some roads are not skies.

' No sky is road.

Some roads are men. (Converse of Third Premise)

We know that,

E + I -type Conclusion Thus, our derived Conclusion would be :

'Some men are not skies'.

Conclusion II is conversel of the second premise.